Steep-tides

Steep-tides are strange geographic features found at the three longitudinal edges of Shardinia's sides. At these edges, The Shard's gravitational pull is weakened, causing the waters of the three seas to rise like a reverse waterfall into the air. Referred to as Steep-tides, these reverse waterfalls are hundreds of metres tall, forming walls of water nigh-on impassable for all but the most accomplished sailors. To pass from one side of the Shard to the other, Shardinians can use teleportation magic, submersible machines, or flight.
Steep-tides also create much of the planet's weather systems, with the water dispersing at the top of the falls, travelling inwards, in droplets, towards the central axis of the planet, forming clouds and falling in various forms of precipitation over the planet.

Type

Waterfall